Documents What do the numbers mean? Na 11 22.990 sodium This is the atomic number. It is the number of protons...

What do the numbers mean? Na 11 22.990 sodium This is the atomic number. It is the number of protons in a single atom of this element. It is also # of electrons. The symbol…

Documents The Mole Concept

The Mole Concept The Mole Concept Review: Avogadro’s Number Avogadro’s Number (symbol N) is named in honor of Italian chemist Amadeo Avogadro It tells us the number of…